GST for SEZ units

SEZ and GST: Complete Tax Treatment Guide for 2026 Special Economic Zones (SEZs) are India’s engine of export-led growth — home to thousands of IT companies, manufacturing units, and service exporters. But GST treatment for SEZs remains one of the most complex and frequently misunderstood areas of Indian indirect taxation. Whether you are a business operating inside an SEZ, a supplier selling to an SEZ, or a developer building one, this comprehensive guide will walk you through every GST rule, benefit, and compliance obligation in plain language.     1. What Is a Special Economic Zone (SEZ)? A Special Economic Zone (SEZ) is a geographically demarcated territory within India that operates under a distinct set of economic laws from the rest of the country. SEZs were established under the Special Economic Zones Act, 2005, and the SEZ Rules, 2006 with the primary objective of promoting exports, attracting foreign investment, creating employment, and developing world-class infrastructure.   Types of SEZs in India Multi-Product SEZ — set up for the manufacture of two or more goods or provision of two or more services. Sector-Specific SEZ — established for the manufacture of a specific product or provision of a specific service (e.g., IT/ITeS SEZ, gems & jewellery SEZ, pharma SEZ). Port-Based or Airport-Based SEZ — SEZs established adjacent to ports or airports. State-Government-Promoted SEZ — promoted by the state government, often in partnership with private developers.   Key Stakeholders in the SEZ Ecosystem SEZ Developer — entity that develops and maintains the SEZ infrastructure. SEZ Unit — a business entity that sets up operations within the SEZ to carry out authorised activities. Domestic Tariff Area (DTA) Supplier — a supplier located outside the SEZ in the domestic market who supplies goods or services to an SEZ unit or developer. Approval Committee — the SEZ approval authority that grants Letters of Approval (LOA) to units.   2. How Does GST Treat SEZs? Under the Goods and Services Tax framework, SEZs enjoy a specially privileged position. Supplies to SEZ units and SEZ developers are treated as zero-rated supplies under Section 16 of the IGST Act, 2017. This is the same treatment given to exports of goods and services outside India.   Legal Basis — Section 16(1)(b) of IGST Act, 2017:   ‘Zero-rated supply means any of the following supplies of goods or services or both, namely — (b) supply of goods or services or both to a Special Economic Zone developer or a Special Economic Zone unit.’   This zero-rated status means: No GST is charged on the supply to an SEZ unit or developer. The DTA supplier can claim full Input Tax Credit (ITC) on inputs used for such supply. The DTA supplier is entitled to a GST refund of unutilised ITC or IGST paid.   Critical Distinction: Zero-rated supply is NOT the same as exempt supply. Under an exempt supply, ITC is blocked. Under zero-rated supply, ITC is fully available and refundable. This distinction is enormously valuable for DTA suppliers to SEZs.   3. GST on Supply of Goods and Services to SEZ Units When a supplier located in the Domestic Tariff Area (DTA) supplies goods or services to an SEZ unit or SEZ developer, two options are available — exactly like export of services:   Option A: Supply Under LUT / Bond — Without Payment of IGST (Recommended) The DTA supplier executes a Letter of Undertaking (LUT) with their GST jurisdictional authority. The supply is made WITHOUT charging IGST on the invoice. The supplier can then claim refund of accumulated Input Tax Credit (ITC) from the GST department. This is the most cash-flow-friendly option and is used by the vast majority of DTA suppliers.   Option B: Supply on Payment of IGST — With Refund Claim IGST is charged on the invoice at the applicable rate (e.g., 18% for IT services, 12% for construction services). The supplier pays the IGST to the government. A refund of the IGST paid is then claimed from the GST department. This option blocks working capital and is generally avoided unless the supplier has no ITC balance.   CleverCoins Recommendation: Always choose Option A (LUT-based supply). It avoids IGST outflow entirely. We assist clients in filing LUT at the start of every financial year so they can supply to SEZs without any IGST payment throughout the year.   4. GST Invoice Requirements for Supply to SEZ When raising an invoice for supply to an SEZ unit or developer (under LUT), the invoice MUST contain the following mandatory elements:   Name, address, and GSTIN of the DTA supplier. Name, address, and GSTIN of the SEZ unit / developer (recipient). Invoice serial number and date. HSN code (for goods) or SAC code (for services). Description, quantity, and value of supply. Rate of IGST — however, since zero-rated, the IGST amount column should show ZERO. The mandatory endorsement: ‘SUPPLY MEANT FOR SEZ UNIT / SEZ DEVELOPER UNDER LUT WITHOUT PAYMENT OF IGST’. LUT ARN (Application Reference Number) and date on the invoice. Authorised officer’s signature or digital authentication.   Common Mistake Alert: Many DTA suppliers forget to mention the LUT ARN and the zero-rated endorsement on their invoice to the SEZ unit. This can lead to the supply being reclassified as a taxable domestic supply — attracting IGST, penalties, and interest. Always double-check your invoice format before dispatch.   5. Place of Supply Rules for SEZ Transactions Understanding Place of Supply (PoS) is critical for SEZ transactions. Under the IGST Act:   Supply of goods to an SEZ unit or developer — the Place of Supply is the location of the SEZ. Since the SEZ is in India, technically this is an inter-state supply attracting IGST (not CGST/SGST). Supply of services to an SEZ unit or developer — the Place of Supply is the location of the SEZ unit, treated as IGST supply. Supplies from SEZ to DTA — these are treated as imports from the SEZ to DTA and attract Customs duty + IGST (not GST charged in